It's possible for a journal I/O request to be added to the log_redrive
queue and the jfsIO thread to be awakened after the thread releases
log_redrive_lock but before it sets its state to TASK_INTERRUPTIBLE.
The jfsIO thread should set the state before giving up the spinlock, so
the waking thread will really wake it.
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
use __set_current_state(TASK_*) instead of current->state = TASK_*
Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
This mirrors Jan Kara's patches for ext3. This patch makes sure that
changes made to inode->i_flags are reflected on disk for jfs. It also
moves a call of jfs_set_inode_flags() to be more consistent with where
jfs_get_inode_flags() is called.
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
- point to the sparse webpage
- use git:// instead of rsync://
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
x86_64 nvidia_bugs() broke when we bailed out on not finding the HPET.
However, the quirk works by checking for _not_ finding the HPET...
Delete the nvidia_hpet_detected flag and simply test for
not finding the HPET, which is simple to do now that
acpi_table_parse returns 1 on failure.
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband:
IPoIB: Turn on interface's carrier after broadcast group is joined
RDMA/ucma: Avoid sending reject if backlog is full
RDMA/cxgb3: Fix MR permission problems
RDMA/cxgb3: Don't reuse skbs that are non-linear or cloned
RDMA/cxgb3: Squelch logging AE errors
RDMA/cxgb3: Stop EP timer when MPA exchange is aborted by peer
RDMA/cxgb3: Move QP to error on destroy if the state is IDLE
RDMA/cxgb3: Fixes for "normal close" failures
RDMA/cxgb3: Fix build on sparc64
RDMA/cma: Initialize rdma_bind_list in cma_alloc_any_port()
RDMA/cxgb3: Don't use mm after it's freed in iwch_mmap()
RDMA/cxgb3: Start ep timer on a MPA reject
IB/mthca: Fix error path in mthca_alloc_memfree()
IB/ehca: Fix sync between completion handler and destroy cq
IPoIB: Only handle async events for one port
Do netif_carrier_on() right after the IPv4 broadcast multicast group
is joined, rather than waiting for all of the initial set of multicast
group joins to finish. This allows at least IPv4 traffic to limp
along on broken fabrics where not all multicast groups can be joined.
Signed-off-by: Shirley Ma <xma@us.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
lockdep found that dev->lock taken from softirq in ipv6_add_addr
is also taken in sctp_v6_copy_addrlist with softirqs enabled, so
lockup is possible.
Noticed-by: Simon Arlott <simon@arlott.org>
Signed-off-by: Jarek Poplawski <jarkao2@o2.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
For 2.6.20 it mostly used to just not work, for 2.6.21-rc it crashes, this
seems to be down to luck (bad or good). The libata-acpi code needs to
avoid doing PCI work on non-PCI devices. This is one hack although it's
not pretty and perhaps there is a "right" way to check if a struct device
* is PCI ?
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ecryptfs uses a lock_parent() function, which I hope really locks the parents
and is not abused
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The sn console driver was snagged by the use of CONFIG_DEBUG_SHIRQ!
The request_irq() immediate call to the interrupt handler caused
another attempt to lock the port lock - deadlock.
This is a patch to fix that.
Signed-off-by: Patrick Gefre <pfg@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In my previous x86_64 thread fix, I forgot to initialize thread.arch.fs in
arch_prctl. A process calling arch_prctl to set %fs would lose it on the
next context switch.
It also turns out that you can switch to a process which is in the process
of exiting and which has lost its mm. In this case, it's worse than
useless to try to call arch_prctl on the host process.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
IA64 and ARM-OABI are currently using their own version of epoll compat_
code.
An architecture needs epoll_event translation if alignof(u64) in 32 bit
mode is different from alignof(u64) in 64 bit mode. If an architecture
needs epoll_event translation, it must define struct compat_epoll_event in
asm/compat.h and set CONFIG_HAVE_COMPAT_EPOLL_EVENT and use
compat_sys_epoll_ctl and compat_sys_epoll_wait.
All 64 bit architecture should use compat_sys_epoll_pwait.
[sfr: restructure and move to fs/compat.c, remove MIPS version
of compat_sys_epoll_pwait, use __put_user_unaligned]
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[Bluetooth] Fix socket locking in hci_sock_dev_event()
hci_sock_dev_event() uses bh_lock_sock() to lock the socket lock.
This is not deadlock-safe against locking of the same socket lock in
l2cap_connect_cfm() from softirq context. In addition to that,
hci_sock_dev_event() doesn't seem to be called from softirq context,
so it is safe to use lock_sock()/release_sock() instead.
The lockdep warning can be triggered on my T42p simply by switching
the Bluetooth off by the keyboard button.
=================================
[ INFO: inconsistent lock state ]
2.6.21-rc2 #4
---------------------------------
inconsistent {in-softirq-W} -> {softirq-on-W} usage.
khubd/156 [HC0[0]:SC0[0]:HE1:SE1] takes:
(slock-AF_BLUETOOTH){-+..}, at: [<e0ca5520>] hci_sock_dev_event+0xa8/0xc5 [bluetooth]
{in-softirq-W} state was registered at:
[<c012d1db>] mark_lock+0x59/0x414
[<e0cef688>] l2cap_connect_cfm+0x4e/0x11f [l2cap]
[<c012dfd7>] __lock_acquire+0x3e5/0xb99
[<e0cef688>] l2cap_connect_cfm+0x4e/0x11f [l2cap]
[<c012e7f2>] lock_acquire+0x67/0x81
[<e0cef688>] l2cap_connect_cfm+0x4e/0x11f [l2cap]
[<c036ee72>] _spin_lock+0x29/0x34
[<e0cef688>] l2cap_connect_cfm+0x4e/0x11f [l2cap]
[<e0cef688>] l2cap_connect_cfm+0x4e/0x11f [l2cap]
[<e0ca17c3>] hci_send_cmd+0x126/0x14f [bluetooth]
[<e0ca4ce4>] hci_event_packet+0x729/0xebd [bluetooth]
[<e0ca205b>] hci_rx_task+0x2a/0x20f [bluetooth]
[<e0ca209d>] hci_rx_task+0x6c/0x20f [bluetooth]
[<c012d7be>] trace_hardirqs_on+0x10d/0x14e
[<c011ac85>] tasklet_action+0x3d/0x68
[<c011abba>] __do_softirq+0x41/0x92
[<c011ac32>] do_softirq+0x27/0x3d
[<c0105134>] do_IRQ+0x7b/0x8f
[<c0103dec>] common_interrupt+0x24/0x34
[<c0103df6>] common_interrupt+0x2e/0x34
[<c0248e65>] acpi_processor_idle+0x1b3/0x34a
[<c0248e68>] acpi_processor_idle+0x1b6/0x34a
[<c010232b>] cpu_idle+0x39/0x4e
[<c04bab0c>] start_kernel+0x372/0x37a
[<c04ba42b>] unknown_bootoption+0x0/0x202
[<ffffffff>] 0xffffffff
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Also PTRACE_OLDSETOPTIONS should be accepted, as done by kernel/ptrace.c
and forced by binary compatibility. UML/32bit breaks because of this -
since it is wise enough to use PTRACE_OLDSETOPTIONS to be binary compatible
with 2.4 host kernels.
Until 2.6.17 (commit f0f2d6536e) we had:
default:
return sys_ptrace(request, pid, addr, data);
Instead here we have:
case PTRACE_GET_THREAD_AREA:
case ...:
return sys_ptrace(request, pid, addr, data);
default:
return -EINVAL;
This change was a style change - when a case is added, it must be
explicitly tested this way. In this case, not enough testing was done.
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Avoid reusing userspace errno twice - it can be cleared by libc code
everywhere (in particular printk() does clear it in my setup).
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Avoid returning ENOMEM in case of a duplicate IRQ - ENOMEM was saved into err
earlier.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix confusion about call context - comments and code are inconsistent and
plain wrong, my fault.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since both UML consoles do not use percpu variables, they may be called when
the cpu is still offline, and they may be marked CON_ANYTIME (this is
documented in kernel/printk.c, grep for CON_ANYTIME to find mentions of this).
Works well in testing done with lock debug enabled, should be safe but is not
needed for next release.
This would probably help also stderr_console.c, but this is yet to test.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
os_usr1_signal() is totally unused, os_usr1_process() is used only by TT mode.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Memory allocated by mcast_user_init must be freed in the matching mcast_remove.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When a given host directory is specified to be mounted both in hostfs=path1
and with mount option -o path2, we should give access to path1/path2, but this
does not happen. Fix that in the simpler way.
Also, root_ino can be the empty string, since we use %s/%s as format.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix double free in the error path - when name is assigned into root_inode we
do not own it any more and we must not kfree() it - see patch for details.
Thanks to William Stearns for the initial report.
CC: William Stearns <wstearns@pobox.com>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Do not assume that AUX_LOOP command is broken unless it
completes successfully but returns wrong (unexpected) data.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[BRIDGE]: adding new device to bridge should enable if up
[IPV6]: Do not set IF_READY if device is down
[IPSEC]: xfrm audit hook misplaced in pfkey_delete and xfrm_del_sa
[IPSEC]: Add xfrm policy change auditing to pfkey_spdget
[IPSEC]: xfrm_policy delete security check misplaced
[CONNECTOR]: Bugfix for cn_call_callback()
[DCCP]: Revert patch which disables bidirectional mode
[IPV6]: Handle np->opt being NULL in ipv6_getsockopt_sticky().
[UDP]: Reread uh pointer after pskb_trim
[NETFILTER]: nfnetlink_log: fix crash on bridged packet
[NETFILTER]: nfnetlink_log: zero-terminate prefix
[NETFILTER]: nf_conntrack_ipv6: fix incorrect classification of IPv6 fragments as ESTABLISHED
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] fsys_getcpu for IA64
[IA64] remove duplicate declaration of efi_initialize_iomem_resources
[IA64] Pick highest possible saved_max_pfn for crash_dump
[IA64] fix NULL pointer in ia64/irq_chip-mask/unmask function
CC arch/mips/arc/init.o
arch/mips/arc/init.c: In function 'prom_init':
arch/mips/arc/init.c:27: warning: ISO C90 forbids mixed declarations and code
arch/mips/arc/init.c:35: warning: format ‘%08lx’ expects type ‘long unsigned int’, but argument 2 has type 'ULONG'
arch/mips/arc/init.c:28: warning: unused variable 'c'
arch/mips/arc/init.c:27: warning: unused variable ‘cnt’
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
o Fix use of uninitialized variable sec.
o Make the RTC_ALM_SET ioctl return -EINVAL for non-zero seconds - the
DS1286 has no second field for the alarm time.
o Replace the obscure BIN_TO_BCD macro with BIN2BCD.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
On 1.6GHz Montectio Tiger4, the following performance data is measured with
kernel built with defconfig which has NUMA configured:
Fastest sys_getcpu: 502 itc counts.
Fastest fsys_getcpu: 28 itc counts.
fsys_getcpu performance is largly impacted by whether data (node_to_cpu_map
etc) is in cache. It can take fsys_getcpu up to ~150 itc counts in cold
cache case.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
efi_initialize_iomem_resources() is declared in both include/linux/efi.h
and arch/ia64/kernel/setup.c. This patch removes the latter.
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Berhhard Walle noted that on his HP rx8640 he ended up with saved_max_pfn
smaller than the highest address of system ram in /proc/iomem and proposed
a patch to base the address on the unrounded and unfiltered EFI memory
map address. Simon Horman and Magnus Damm suggested that the whole test
be moved earlier in the function. This is the combination of both of
these patches.
Signed-off-by: Tony Luck <tony.luck@intel.com>
One change introduced by the workqueue removal patch is that adding an
interface that is up to a bridge which is also up does not ever call
br_stp_enable_port(), leaving the port in DISABLED state until we do
ifconfig down and up or link events occur.
The following patch to the br_add_if function fixes it.
This is a regression introduced in 2.6.21.
Submitted-by: Aji_Srinivas@emc.com
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that we add the IPv6 device at registration time we don't need
to set IF_READY in ipv6_add_dev anymore because we will always get
a NETDEV_UP event later on should the device ever become ready.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Inside pfkey_delete and xfrm_del_sa the audit hooks were not called if
there was any permission/security failures in attempting to do the del
operation (such as permission denied from security_xfrm_state_delete).
This patch moves the audit hook to the exit path such that all failures
(and successes) will actually get audited.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Venkat Yekkirala <vyekkirala@trustedcs.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
pfkey_spdget neither had an LSM security hook nor auditing for the
removal of xfrm_policy structs. The security hook was added when it was
moved into xfrm_policy_byid instead of the callers to that function by
my earlier patch and this patch adds the auditing hooks as well.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Venkat Yekkirala <vyekkirala@trustedcs.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The security hooks to check permissions to remove an xfrm_policy were
actually done after the policy was removed. Since the unlinking and
deletion are done in xfrm_policy_by* functions this moves the hooks
inside those 2 functions. There we have all the information needed to
do the security check and it can be done before the deletion. Since
auditing requires the result of that security check err has to be passed
back and forth from the xfrm_policy_by* functions.
This patch also fixes a bug where a deletion that failed the security
check could cause improper accounting on the xfrm_policy
(xfrm_get_policy didn't have a put on the exit path for the hold taken
by xfrm_policy_by*)
It also fixes the return code when no policy is found in
xfrm_add_pol_expire. In old code (at least back in the 2.6.18 days) err
wasn't used before the return when no policy is found and so the
initialization would cause err to be ENOENT. But since err has since
been used above when we don't get a policy back from the xfrm_policy_by*
function we would always return 0 instead of the intended ENOENT. Also
fixed some white space damage in the same area.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Venkat Yekkirala <vyekkirala@trustedcs.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
When system under heavy stress and must allocate new work
instead of reusing old one, new work must use correct
completion callback.
Patch is based on Philipp's and Lars' work.
I only cleaned small stuff (and removed spaces instead of tabs).
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts an earlier patch which disabled bidirectional mode, meaning that
a listening (passive) socket was not allowed to write to the other (active)
end of the connection.
This mode had been disabled when there were problems with CCID3, but it
imposes a constraint on socket programming and thus hinders deployment.
A change is included to ignore RX feedback received by the TX CCID3 module.
Many thanks to Andre Noll for pointing out this issue.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
physoutdev is only set on purely bridged packet, when nfnetlink_log is used
in the OUTPUT/FORWARD/POSTROUTING hooks on packets forwarded from or to a
bridge it crashes when trying to dereference skb->nf_bridge->physoutdev.
Reported by Holger Eitzenberger <heitzenberger@astaro.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Userspace expects a zero-terminated string, so include the trailing
zero in the netlink message.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
